Security readout for executives and security teams
Plain-English summary
This flaw can let an unauthenticated attacker make affected Ivanti access systems reach restricted resources. Because these products often guard remote access and CISA lists the vulnerability as known exploited, exposed deployments warrant urgent investigation. The supplied evidence does not establish which resources attackers can reach or the resulting business impact in every environment.
Executive priority
Immediate priority for internet-facing or otherwise untrusted-access deployments. Assign accountable owners to inventory, remediate, and investigate exposure. CISA's exploitation signal raises this above routine patching, although the supplied bundle does not prove any specific organization has been compromised.
Technical view
CVE-2024-21893 is a server-side request forgery weakness, CWE-918, in the SAML component of Ivanti Connect Secure, Policy Secure, and Neurons for ZTA. It is remotely reachable without privileges or user interaction. CVSS 3.0 is 8.2, reflecting high confidentiality and low integrity impact without stated availability impact.
Likely exposure
Potential exposure includes deployments in the named 9.x and 22.x product families, particularly externally reachable access gateways. The bundle names ICS 9.1R18 and 22.6R2, and IPS 9.1R18 and 22.6R1, but does not clearly establish whether those are vulnerable or corrected versions. Exact exposure requires vendor-supported build verification.
Exploitation context
CISA's Known Exploited Vulnerabilities listing supports active exploitation in the wild. The supplied sources do not describe exploitation scale, targets, indicators, or attack chains. Treat unexplained SAML-related requests and access to restricted internal resources as investigation leads, not conclusive evidence of compromise.
Researcher notes
The bundle supports unauthenticated SSRF, CVSS 8.2, and known exploitation. It does not provide safe detection indicators, patch identifiers, or an unambiguous affected-version range. The supplied Ivanti forum URL is titled for CVE-2024-21888, so it should not independently substantiate remediation for CVE-2024-21893.
Mitigation direction
- Identify affected Ivanti products, versions, and externally reachable interfaces immediately.
- Obtain current CVE-2024-21893 remediation guidance directly from Ivanti and apply its prescribed updates or mitigations.
- Restrict unnecessary external access until vendor remediation is confirmed.
- Initiate compromise assessment for exposed systems because CISA records active exploitation.
Validation and detection
- Record exact product names, builds, and SAML usage for every deployment.
- Compare each build against current Ivanti guidance specifically addressing CVE-2024-21893.
- Confirm prescribed updates or mitigations are present and operational.
- Review relevant request and access telemetry for anomalous SAML activity or restricted-resource access.
- Escalate suspicious findings through incident-response procedures without attempting exploit validation.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-21893 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.2 (3.0)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N3.94.2hackeroneVulnerability scoring details
Base CVSS 3.0 score
8.2HighVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2024-21893 added to CISA KEV
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2024-01-31T00:00:00.000Z: CVE-2024-21893 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- https://forums.ivanti.com/s/article/CVE-2024-21888-Privilege-Escalation-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure?language=en_USCVE reference, hackerone
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-21893CVE reference, CISA-ADP · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Server-Side Request Forgery (SSRF)
Server-Side Request Forgery (SSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.